Last week (2013-04-17), I have redrawn the coastline for Vanikoro and Teanu islands, from the Bing images, much much better than the previous Yahoo source.

I am now waiting for the coastline rendering to be updated by mapnik, as it's a much longer process than standard features rendering.
By the time, I have also added some of the residential landuses and some "rivers".

A curiosity : the La Pérouse memorial is located on the opposite shore of the actual shipwreck.